1000221121110 has 16 divisors (see below), whose sum is σ = 2400530690736. Its totient is φ = 266725632288.

The previous prime is 1000221121079. The next prime is 1000221121111. The reversal of 1000221121110 is 111211220001.

1000221121110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1000221121110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221121111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16670351989 + ... + 16670352048.

It is an arithmetic number, because the mean of its divisors is an integer number (150033168171).

Almost surely, 2^{1000221121110} is an apocalyptic number.

1000221121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000221121110 is an abundant number, since it is smaller than the sum of its proper divisors (1400309569626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000221121110 is a wasteful number, since it uses less digits than its factorization.

1000221121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33340704047.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1000221121110 its reverse (111211220001), we get a palindrome (1111432341111).

The spelling of 1000221121110 in words is "one trillion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred ten".